[visual c#] Kako preverim, če node že obstaja?

http://forums.microsoft.com/MSDN/ShowPo...

jst sem pol izbral:

TreeNode selectedNode = treeView1.SelectedNode;
if (selectedNode == null) return;
string newKey = textBox1.Text;

if (selectedNode.Nodes.Find(newKey, true).Length > 0) {
MessageBox.Show("Node with '" + newKey + "' name already exists.");
} else {
TreeNode newNode = new TreeNode(newKey);
newNode.Name = newKey;
selectedNode.Nodes.Add(newNode);
}
by .binny

lep pozdrav!